A novel coated nonwoven fibrous mat having properties particularly suited
for a facer on gypsum wallboard, laminates made therefrom and the method
of making the mat is disclosed. The mat preferably contains a major
portion of glass fibers and a minor portion of a resinous binder. The
coating is permeable and reduces fiber dust, and yields a smooth surface.
The coating comprises mineral pigment and an organic binder.